Abstract
The objectives of this study were to investigate the effect of seasonal variation on canopy size, and the effect of canopy size on light penetration of ‘Rayong 9′ cassava under irrigated and rainfed conditions. Rayong 9 was planted under two water regimes in a randomized complete block design with four replications in May and November for two years. At final harvest, years were significantly different (p ≤ 0.05) for biomass, shoot dry weight, and harvest index and contributed to large portions of total variations in shoot dry weight (56.8%) and HI (44.5%). Planting date was a significant source of variations in all measured characters, and it contributed to the largest portions of variations in biomass, storage root dry weight and storage root fresh weight (46.1–60.9%). Water regimes were not significantly different for most characters except for harvest index (p ≤ 0.01). The canopy of the crop planted in May grew rapidly in early growth stages in the rainy season and then slowly after the rainy season. The canopy of the crop planted in November grew rapidly in the middle to the late growth stages. Irrigation did not significantly increase root yield although it slightly increased canopy development, leaf area index (LAI), light penetration and photosynthesis. Irrigation at the late growth stages of the crop planted in May significantly increased storage root yield. Irrigation at these growth stages helped maintain canopy development, LAI and light penetration.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 14
Claim · model-written summary
Years differed significantly for biomass, shoot dry weight, and harvest index.
- Taxon
- cassava
Manihot esculentat0 - Outcome
- biomass, shoot dry weight, and harvest indexe0
- Value
- p ≤ 0.05e0
- Qualifier
- yearse0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“years were significantly different (p ≤ 0.05) for biomass, shoot dry weight, and harvest index”
t0“cassava”
Claim · model-written summary
Years explained 56.8% of shoot dry weight variation.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Seasonal Variationst0
- Outcome
- variations in shoot dry weighte0
- Value
- 56.8%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“contributed to large portions of total variations in shoot dry weight (56.8%) and HI (44.5%)”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Years explained 44.5% of harvest index variation.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Seasonal Variationst0
- Outcome
- HIe0
- Value
- 44.5%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“contributed to large portions of total variations in shoot dry weight (56.8%) and HI (44.5%)”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Planting date significantly varied all measured characters.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Planting datee0
- Outcome
- all measured characterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Planting date was a significant source of variations in all measured characters”
t0“cassava”
Claim · model-written summary
Planting date explained 46.1–60.9% of variation in biomass and storage root weights.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Seasonal Variationst0
- Outcome
- variations in biomass, storage root dry weight and storage root fresh weighte0
- Value
- 46.1–60.9%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it contributed to the largest portions of variations in biomass, storage root dry weight and storage root fresh weight (46.1–60.9%)”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Water regimes differed significantly for harvest index.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Water regimese0
- Outcome
- harvest indexe0
- Value
- p ≤ 0.01e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water regimes were not significantly different for most characters except for harvest index (p ≤ 0.01).”
t0“cassava”
Claim · model-written summary
Water regimes did not significantly differ for most other characters.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Water regimese0
- Outcome
- most characterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water regimes were not significantly different for most characters except for harvest index (p ≤ 0.01).”
t0“cassava”
Claim · model-written summary
May-planted canopy grew rapidly early and slowly after the rainy season.
- Taxon
- cassavaManihot esculentat0
- Organ / stage
- early growth stagese0
- Outcome
- canopye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The canopy of the crop planted in May grew rapidly in early growth stages in the rainy season and then slowly after the rainy season.”
t0“cassava”
Claim · model-written summary
November-planted canopy grew rapidly from middle to late stages.
- Taxon
- cassavaManihot esculentat0
- Organ / stage
- middle to the late growth stagese0
- Outcome
- canopye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The canopy of the crop planted in November grew rapidly in the middle to the late growth stages.”
t0“cassava”
Claim · model-written summary
Irrigation did not significantly increase root yield.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Irrigatione0
- Outcome
- root yielde0
- Direction
- did not significantly increasee0
- Comparator
- Rainfedt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation did not significantly increase root yield”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Irrigation slightly increased canopy development, leaf area index and light penetration.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Irrigatedt0
- Outcome
- canopy development, leaf area index (LAI), light penetratione0
- Direction
- increasede0
- Comparator
- Rainfedt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it slightly increased canopy development, leaf area index (LAI), light penetration and photosynthesis.”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Irrigation slightly increased photosynthesis.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Irrigatedt0
- Outcome
- photosynthesise0
- Direction
- increasede0
- Comparator
- Rainfedt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it slightly increased canopy development, leaf area index (LAI), light penetration and photosynthesis.”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Late irrigation in May plantings significantly increased storage root yield.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Irrigation at the late growth stagese0
- Outcome
- storage root yielde0
- Direction
- increasede0
- Comparator
- Rainfedt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at the late growth stages of the crop planted in May significantly increased storage root yield.”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
Claim · model-written summary
Late irrigation maintained canopy development, leaf area index and light penetration.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Irrigation at these growth stagese0
- Outcome
- canopy development, LAI and light penetratione0
- Direction
- maintaine0
- Comparator
- Rainfedt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at these growth stages helped maintain canopy development, LAI and light penetration.”
t0“Seasonal Variations in Canopy Size and Yield of Rayong 9 Cassava Genotype under Rainfed and Irrigated Conditions”
The same questions in other papers
irrigation · growth · Manihot esculenta (cassava)Results differ
13 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- negative
14 papers more in this group
See all 18 papers →irrigation · physiology: photosynthesis · Manihot esculenta (cassava)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
irrigation · yield · Manihot esculenta (cassava)Positive and negative results
17 papers in the same direction as this paper · 2 in the opposite direction
- negative
- positive
- positive
16 papers more in this group
See all 20 papers →stage · growth · Manihot esculenta (cassava)Results agree
1 paper in the same direction as this paper
- positive
stage · yield · Manihot esculenta (cassava)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.